We are offering extra heavy duty tiller. 1. Heavy duty tynes to restrain force in toughest operations. 2. High quality and specially made shovels to give more depth to the cultivator. 3. Perfect angle to the tynes reduce the power used by tractor while working in the field. 4. More coils to spring increases the tension load. 5. Heavy duty frame and angles to restrain it from bending thus making it heavy duty tiller.